Rigidbot single head cooling fan mount Rev-2

After receiving reports that the mounting tab was breaking in some instances I created a version of this cooling fan mount that included a rib along the edge of a widened tab to add more strength. The dual fan support from which it was originally derived does not need this feature as it gets additional support from the second extruder stepper motor.

Reports are that the new design is working well so I here is the file. Cura scaled and oriented for printing.

See http://www.thingiverse.com/